Revo or APR
Chips generally change the coding of the ECM, or delete/add data blocks.
The best thing to do is buy another ECM and chip that one, when the warranty expires you can sell the stock one on e-bay.
The best thing to do is buy another ECM and chip that one, when the warranty expires you can sell the stock one on e-bay.
Yeah you can hide it from most techs, but if something goes down with the motor and the dealer gets the TFM (technical field manager) your f****d, there is nothing those guys can't find. They have ways of decoding the black boxes and finding out what exactly was in the data blocks when the motor blew, just like the 4.2L S4 guy did. He had the same tuning, turned it back to stock. Butafter the TFMdecoded the ECM we found out he was at 10,200 RPM when the motor turned off, aka missed a shift. Chips on those don't have rev limiters


